如何使用robolectric单元测试android录音应用程序 [英] How to unit test android audio recording app using robolectric

问题描述

我只是想知道是否可以使用Robolectric框架对Android录音机应用程序进行单元测试.

I just want to know whether it is possible to unit test android audio recorder app using the Robolectric framework.

据我所知，Robolectric并未使用仿真器或真实设备进行测试.但是在录音应用程序中，我需要测试是否正在录制音频?它是否存储在SD卡上的指定位置?是否可以使用媒体播放器播放?和许多其他情况.

As far as I know, Robolectric does not use the emulator or real device for testing. But in audio recording app, I need to test whether audio is getting recorded? Does it get stored at the specified location on SD card? Does it get played using the media player? and many other scenarios.

我看过很多Robolectric教程，但是它们没有回答我的问题.我也曾问过这个问题( https://groups.google.com/forum/#！topic/robolectric/JLKrRGsvIkU )在Robolectric谷歌论坛中没有得到回答.阴影的概念在这里有用吗?

I have looked into many Robolectric tutorials but they do not answer my question. I had also asked this question( https://groups.google.com/forum/#!topic/robolectric/JLKrRGsvIkU ) in Robolectric google group which went unanswered. Is the concept of shadows helpful here?

推荐答案

我想您使用MediaRecorder录制音频.

I guess you use the MediaRecorder for recording audio.

Robolectric已经为MediaRecorder提供了一个影子.该影子仅存储属性和当前的停止/启动状态.没有实现录音.有关详细信息，请参见

Robolectric has already a Shadow for the MediaRecorder. This shadow only stores properties and the current stopped/started state. There is no audio recording implemented. For details, see https://github.com/robolectric/robolectric/blob/master/shadows/framework/src/main/java/org/robolectric/shadows/ShadowMediaRecorder.java

是的，您可以使用Robolectric对应用程序进行单元测试，但无法进行真实的音频记录.您可以做的一件事是，当其他代码部分与此文件一起使用时，将虚拟记录文件放入目标路径.

Yes, you can unit test your app with Robolectric but real audio recording will not work. One thing you can do is to put a dummy record file to the target path when other code parts work with this file.

此外，使用Espresso等其他工具可能很难测试.

Also, with other tools like Espresso it could be hard to test.

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